Science & Mathematics - 31 January 2007

It pertains to some sort of math. Im not sure as to any hints.

2007-01-31 02:25:45 · 1 answers · asked by Rose 2 in Mathematics

2007-01-31 02:25:03 · 1 answers · asked by Sree 2 in Physics

2007-01-31 02:23:43 · 3 answers · asked by Anonymous in Geography

CF4, CHF3, OF2, HF are placed in which categories, London dispersion, dipole-dipole, and hydrogen bonding?

2007-01-31 02:22:05 · 2 answers · asked by Anonymous in Chemistry

A rock dropped from 1200 ft., ignoring air resistance. How long does it take to hit ground? How fast will it be traveling at impact? Would these answers change if it were thrown 90 mph horizontally? How far would the horizontal rock go before impact?

I have the 32 ft/sec^2. I just don't seem to be doing something correct. I think it hits at the same time. Then I just convert the 90 mph into sec for the first answer.

Thank you for any help. I'm snowed in and can't get to the math lab.

2007-01-31 02:21:44 · 2 answers · asked by dude 5 in Physics

2007-01-31 02:21:32 · 16 answers · asked by Anonymous in Weather

Is there a standard for the antenna on GSM cell phones? if so, where can I find it? If not, any example of a GSM phone antenna would do.

2007-01-31 02:21:06 · 1 answers · asked by fjsouki 1 in Engineering

2007-01-31 02:21:01 · 1 answers · asked by Sree 2 in Physics

Assume that 3.09 x 106 kJ are needed to heat a swimming pool. If this energy is derived from the combustion of methane (CH4) at standard conditions (25 oC and 1 atm) what volume in liters of methane must be burned?


The heat of combustion of methane is 889.967 kJ/mol. The density of methane is 0.0680 kg/m3

2007-01-31 02:20:31 · 6 answers · asked by Foxychick 1 in Chemistry

2007-01-31 02:20:17 · 12 answers · asked by Menehune 1 in Astronomy & Space

I am working on a homework assignment and having a hard time any tutors out there

2007-01-31 02:17:05 · 4 answers · asked by rae 1 in Chemistry

It's not real. Our world is continueing its patern. It will warm up and cool down then we will have an ice age.

2007-01-31 02:16:18 · 10 answers · asked by Brent D 1 in Earth Sciences & Geology

What are the rules for eye donors?, after death of donor for how much time eyes are useful for transplant? In short about the procedure of removing eyeballs, storing it & use it for operation? In what conditions eyes are not useful for transplanting to recipient? which part is exactly used in transplanting? what are the rules about age difference of donor & recipient? how the eyes of donor are matched with recepient? If any person lost his/her eyes in an accident then is it possible to graft both the eyes from same donor? does it have any change of colour or any other change in eye after operation? What about physical activities of recepient after operation?

2007-01-31 02:16:03 · 2 answers · asked by smalleyessharpviews 3 in Medicine

I need some homework help from people outside of the San Francisco Bay Area - at least 500 miles away (East Coast would be great!). Please answer the following:

-Date and time (please be specific)
-Which side is lit up and which is dark (left/right)?
-What is the shape of the moon?
-Name and location

Please be honest! This is for a graded homework assignment and I don't want to look like an idiot :( - the first to answer completely will get my vote for best answer.

Thanks for the help!

2007-01-31 02:15:57 · 3 answers · asked by Anonymous in Astronomy & Space

A says to B, "I am twice as old as you were, when I was as old as you are". Sum of their ages is 63. What are their present ages?

2007-01-31 02:13:35 · 15 answers · asked by Oracle 1 in Mathematics

2007-01-31 02:13:07 · 5 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-31 02:12:57 · 11 answers · asked by Anonymous in Earth Sciences & Geology

this is crotian dinara i want to know that 100000republika hrvatska
is how many in indian currency?plz tell me

2007-01-31 02:12:38 · 1 answers · asked by sudhanshu_pradhan 1 in Geography

2007-01-31 02:12:27 · 10 answers · asked by vignesh e 1 in Physics

2007-01-31 02:11:14 · 3 answers · asked by zinky b 1 in Chemistry

2007-01-31 02:08:21 · 2 answers · asked by Anonymous in Engineering

a. (x-4)^2 /16+(y-2)^2 /4=1

b. (x+4)^2 /16+(y-2)^2 /4=1

c. (y+2)^2 /16+(x+4)^2 /4=1

d. (y-2)^2 /16+(x-4)^2 /4=1

2007-01-31 02:08:20 · 4 answers · asked by lana l 1 in Mathematics

2007-01-31 02:07:36 · 6 answers · asked by rcpass 2 in Physics

But it IS frequently used to determine the molar mass of unknown non-electrolyte compounds!

2007-01-31 02:07:31 · 3 answers · asked by AppleCard! 2 in Chemistry

im writting a paper and im wondering which type of alternative energy will be supported by the public

2007-01-31 02:04:36 · 22 answers · asked by Anonymous in Other - Science

2007-01-31 02:04:00 · 4 answers · asked by Da Jimster 1 in Weather

2007-01-31 02:03:11 · 3 answers · asked by zebbie g 2 in Zoology

a. (x-1)^2+(y+4)^2=5
b. (x-1)^2+(y+4)^2=25
c. (x+1)^2+(y-4)^2=5
d. (x+1)^2+(y-4)^2=25

2007-01-31 02:03:04 · 3 answers · asked by lana l 1 in Mathematics

like i have no idea how to round things in math

2007-01-31 02:02:59 · 8 answers · asked by London-England- 1 in Mathematics

Software engineering is a profession that mix various disciplines such project management and software development methods and methodologies. How then can someone become a software engineer from any other discipline like mathematics and economics.

2007-01-31 02:00:20 · 1 answers · asked by kigz 1 in Engineering